This Service Shop Repair Manual covers the KOMATSU SK815-5N and SK815-5NA Skid Steer Loaders, designed for maintaining, assembly, disassembly, and servicing. These machines are engineered for robust performance and reliability in demanding operational environments. Serial numbers SK815-5N A30001 and up, and SK815-5NA A10001 and up, are covered by this documentation. This comprehensive English-language manual, spanning 264 pages, provides detailed guidance for all aspects of vehicle service. It includes essential information on structure and function, testing and adjusting procedures, disassembly and assembly, and maintenance standards. The manual is designed to assist owners, mechanics, and technicians in effectively servicing and repairing their KOMATSU Skid Steer Loaders, ensuring optimal performance and longevity.